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On April 6, 2001, the reconstructed wooden footbridge was opened, being the longest wooden bridge in Switzerland. The Kapellbrücke is a 204-metre-long (669 ft) bridge crossing the Reuss in the city of Lucerne in Switzerland. It is the oldest wooden covered bridge in Europe, and one of Switzerland's main tourist attractions. [citation needed]
Such log bridges have a severely limited lifetime [3] due to soil contact and subsequent rot and wood-eating insect infestation. Longer lasting log bridges may be constructed by using treated logs and/or by providing well drained footings [ 4 ] of stone or concrete combined with regular maintenance to prevent soil infiltration.
A timber bridge or wooden bridge is a bridge that uses timber or wood as its principal structural material. One of the first forms of bridge, those of timber have been used since ancient times. Wooden bridges could be a deck-only structure or a deck with a roof. Wooden bridges were often a single span, but could be of multiple spans.
Crib bridges were made from horizontally placed logs. [1] The logs were laid first lengthwise, and then crosswise, in several layers. This consumed more trees than building trestle bridges, but they were easier to build without cranes or rams. Less common are crib bridges made from stone, such as the Bailey Island Bridge.
In practice, most wood stringers are 16 inches (410 mm) in width due to limitations in milling. There are usually six stringers in a bridge. [18] Building the deck for a railroad bridge requires that a stringer lie directly beneath each rail, and that a stringer support each end of the railroad ties. Ties are usually 6 by 8 inches (150 by 200 ...
The original Dale Creek wooden bridge under construction, Harper's Weekly, 1868. Originally built of wood, the trestle swayed in the wind as the first train crossed on April 23, 1868. [5] In the days following, as carpenters rushed to shore up the bridge, two fell to their deaths. The bridge's timbers flexed under the strain of passing trains. [6]
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The construction of the Dinkey Creek Bridge was part of a wider effort to improve access to recreation and timber resources in the area. [3] The bridge was designed by engineer T.K. "Tank" May. [4] The concrete abutments were designed by the Fresno County Surveyor in June 1938, and construction on the bridge completed that year.